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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM load development questions
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<blockquote data-quote="Tidesloe" data-source="post: 785199" data-attributes="member: 47761"><p>[ATTACH]19924[/ATTACH]</p><p> </p><p>This shows that not all primers are cratered, and maybe they dont appear to be too flattened. The ones on the left have no cratering, but the ones on the right do. These were all fired yesterday from 90 - 92 gr. These primers have a very different look, I'm not sure why. I'm extra careful on my charge weight's, and check each one with a check weight set before and after I've charged each 3 round weight group.</p><p> </p><p>[ATTACH]19925[/ATTACH]</p><p> </p><p>In this view the case heads look good, I think.</p><p>Maybe I should ignore the primer cratering. The 3 case heads are from the 92 gr loads. The warmest. I'm not convinced that I'm seeing pressure signs, but the velocity increases that I expected weren't there.</p><p> </p><p>Between 88 & 90 gr the velocities seem to be readable, but from 90 - 92, I cant read much of anything into the velocities. At 92 gr the velocities straighten back out, but not what I had expected.</p><p>So with 210 VLD's if I remember correctly without going back and looking. This thread has gotten a bit long. Were you running 92 gr?, if so what kind of velocities were you getting?</p></blockquote><p></p>
[QUOTE="Tidesloe, post: 785199, member: 47761"] [ATTACH]19924.vB[/ATTACH] This shows that not all primers are cratered, and maybe they dont appear to be too flattened. The ones on the left have no cratering, but the ones on the right do. These were all fired yesterday from 90 - 92 gr. These primers have a very different look, I'm not sure why. I'm extra careful on my charge weight's, and check each one with a check weight set before and after I've charged each 3 round weight group. [ATTACH]19925.vB[/ATTACH] In this view the case heads look good, I think. Maybe I should ignore the primer cratering. The 3 case heads are from the 92 gr loads. The warmest. I'm not convinced that I'm seeing pressure signs, but the velocity increases that I expected weren't there. Between 88 & 90 gr the velocities seem to be readable, but from 90 - 92, I cant read much of anything into the velocities. At 92 gr the velocities straighten back out, but not what I had expected. So with 210 VLD's if I remember correctly without going back and looking. This thread has gotten a bit long. Were you running 92 gr?, if so what kind of velocities were you getting? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM load development questions
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